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Class 12 Probability · Mcq Single Correct1 Marksconditional_probability

Class 12 Maths · Probability · Mcq Single Correct #10

A family has three children, independently equally likely to be boys or girls. Given at least one girl, find P(eldest is a girl).

✅ Step-by-Step Solution

Final Answer: Option (D): 4/7
  1. There are 7 equally likely sequences containing a girl; 4 start with a girl. Probability=4/7.

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